Finding the Fourth Proportional to 3,927.59, 5,418.27 and 3,479.92

Step by Step Solution

1. Step 1: Write the proportion equation
   3,927.59 : 5,418.27 = 3,479.92 : x
2. Step 2: Convert to fraction form
   3,927.59/5,418.27 = 3,479.92/x
3. Step 3: Cross multiply
   3,927.59x = 5,418.27 × 3,479.92
4. Step 4: Simplify right side
   3,927.59x = 18,855,123.89
5. Step 5: Solve for x
   x = 18,855,123.89/3,927.59
6. Step 6: Final answer
   x = 4,800.69